11553342503 has 8 divisors (see below), whose sum is σ = 11619081936. Its totient is φ = 11487760000.

The previous prime is 11553342499. The next prime is 11553342523. The reversal of 11553342503 is 30524335511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11553342503 - 2² = 11553342499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11553342503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11553342523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110033 + ... + 187653.

It is an arithmetic number, because the mean of its divisors is an integer number (1452385242).

Almost surely, 2^11553342503 is an apocalyptic number.

11553342503 is a deficient number, since it is larger than the sum of its proper divisors (65739433).

11553342503 is an equidigital number, since it uses as much as digits as its factorization.

11553342503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78465.

The product of its (nonzero) digits is 27000, while the sum is 32.

The spelling of 11553342503 in words is "eleven billion, five hundred fifty-three million, three hundred forty-two thousand, five hundred three".